Arkadaşlar Merhaba,
2 ayrı donanımsal spi ile haberleşen modüllerim var. Bu modüllerin kütüphanelerini nasıl tanımlayabilirim. 1 tanesini tanımlarken sıkıntı yok 2. modül için tanımlamaya kalktığımda nasıl bir yol izlemeliyim kütüphanenin ismini ve fiziksel pinlerin tanımlarını değiştirmek yeterli olurmu?
İyi Çalışmalar.
Olur da ona gerek yok ki.
Bu kütüphaneyi çoklu SPI için yapsan daha iyi olur.
Mesela şöyle
typedef enum
{
SPI1 = 0,
SPI2
}SPI_t;
#define SPI1_MOSI ...
void SPI_Init(SPI_t SPIx)
{
if (SPIx == SPI1)
{
}
}
Bu mantığı read/write ve diğer fonksiyonlar içinde yaparsan olur.
çoklu spi yaptığımda diğer fonksiyonlara dokunmasam direk fiziksel spi pinleri ni read write fonksiyonlarını ve init fonksiyonunu revizyon yapsam kütüphanede sorun yaşarmıyım komple revizyona ihtiyaç olurmu vaktim fazla olmadığı için soruyorum
Yanı çakışan bir şey yok ise olur.
Fakat kodu paylaşırsan bir örnek verebilirim.
kullandığım kütüphane aşağıda
header
#ifndef MFRC522_H
#define MFRC522_H
#include "stm32f1xx_hal.h" // Device header
#include "stm32f1xx_hal_gpio.h"
#include "stm32f1xx_hal_spi.h"
extern SPI_HandleTypeDef hspi1;
typedef enum {
MI_OK = 0,
MI_NOTAGERR,
MI_ERR
} MFRC522_Status_t;
#define MFRC522_CS_LOW HAL_GPIO_WritePin(GPIOA,GPIO_PIN_4,GPIO_PIN_RESET);
#define MFRC522_CS_HIGH HAL_GPIO_WritePin(GPIOA,GPIO_PIN_4,GPIO_PIN_SET);
/* MFRC522 Commands */
#define PCD_IDLE 0x00 //NO action; Cancel the current command
#define PCD_AUTHENT 0x0E //Authentication Key
#define PCD_RECEIVE 0x08 //Receive Data
#define PCD_TRANSMIT 0x04 //Transmit data
#define PCD_TRANSCEIVE 0x0C //Transmit and receive data,
#define PCD_RESETPHASE 0x0F //Reset
#define PCD_CALCCRC 0x03 //CRC Calculate
/* Mifare_One card command word */
#define PICC_REQIDL 0x26 // find the antenna area does not enter hibernation
#define PICC_REQALL 0x52 // find all the cards antenna area
#define PICC_ANTICOLL 0x93 // anti-collision
#define PICC_SElECTTAG 0x93 // election card
#define PICC_AUTHENT1A 0x60 // authentication key A
#define PICC_AUTHENT1B 0x61 // authentication key B
#define PICC_READ 0x30 // Read Block
#define PICC_WRITE 0xA0 // write block
#define PICC_DECREMENT 0xC0 // debit
#define PICC_INCREMENT 0xC1 // recharge
#define PICC_RESTORE 0xC2 // transfer block data to the buffer
#define PICC_TRANSFER 0xB0 // save the data in the buffer
#define PICC_HALT 0x50 // Sleep
/* MFRC522 Registers */
//Page 0: Command and Status
#define MFRC522_REG_RESERVED00 0x00
#define MFRC522_REG_COMMAND 0x01
#define MFRC522_REG_COMM_IE_N 0x02
#define MFRC522_REG_DIV1_EN 0x03
#define MFRC522_REG_COMM_IRQ 0x04
#define MFRC522_REG_DIV_IRQ 0x05
#define MFRC522_REG_ERROR 0x06
#define MFRC522_REG_STATUS1 0x07
#define MFRC522_REG_STATUS2 0x08
#define MFRC522_REG_FIFO_DATA 0x09
#define MFRC522_REG_FIFO_LEVEL 0x0A
#define MFRC522_REG_WATER_LEVEL 0x0B
#define MFRC522_REG_CONTROL 0x0C
#define MFRC522_REG_BIT_FRAMING 0x0D
#define MFRC522_REG_COLL 0x0E
#define MFRC522_REG_RESERVED01 0x0F
//Page 1: Command
#define MFRC522_REG_RESERVED10 0x10
#define MFRC522_REG_MODE 0x11
#define MFRC522_REG_TX_MODE 0x12
#define MFRC522_REG_RX_MODE 0x13
#define MFRC522_REG_TX_CONTROL 0x14
#define MFRC522_REG_TX_AUTO 0x15
#define MFRC522_REG_TX_SELL 0x16
#define MFRC522_REG_RX_SELL 0x17
#define MFRC522_REG_RX_THRESHOLD 0x18
#define MFRC522_REG_DEMOD 0x19
#define MFRC522_REG_RESERVED11 0x1A
#define MFRC522_REG_RESERVED12 0x1B
#define MFRC522_REG_MIFARE 0x1C
#define MFRC522_REG_RESERVED13 0x1D
#define MFRC522_REG_RESERVED14 0x1E
#define MFRC522_REG_SERIALSPEED 0x1F
//Page 2: CFG
#define MFRC522_REG_RESERVED20 0x20
#define MFRC522_REG_CRC_RESULT_M 0x21
#define MFRC522_REG_CRC_RESULT_L 0x22
#define MFRC522_REG_RESERVED21 0x23
#define MFRC522_REG_MOD_WIDTH 0x24
#define MFRC522_REG_RESERVED22 0x25
#define MFRC522_REG_RF_CFG 0x26
#define MFRC522_REG_GS_N 0x27
#define MFRC522_REG_CWGS_PREG 0x28
#define MFRC522_REG__MODGS_PREG 0x29
#define MFRC522_REG_T_MODE 0x2A
#define MFRC522_REG_T_PRESCALER 0x2B
#define MFRC522_REG_T_RELOAD_H 0x2C
#define MFRC522_REG_T_RELOAD_L 0x2D
#define MFRC522_REG_T_COUNTER_VALUE_H 0x2E
#define MFRC522_REG_T_COUNTER_VALUE_L 0x2F
//Page 3:TestRegister
#define MFRC522_REG_RESERVED30 0x30
#define MFRC522_REG_TEST_SEL1 0x31
#define MFRC522_REG_TEST_SEL2 0x32
#define MFRC522_REG_TEST_PIN_EN 0x33
#define MFRC522_REG_TEST_PIN_VALUE 0x34
#define MFRC522_REG_TEST_BUS 0x35
#define MFRC522_REG_AUTO_TEST 0x36
#define MFRC522_REG_VERSION 0x37
#define MFRC522_REG_ANALOG_TEST 0x38
#define MFRC522_REG_TEST_ADC1 0x39
#define MFRC522_REG_TEST_ADC2 0x3A
#define MFRC522_REG_TEST_ADC0 0x3B
#define MFRC522_REG_RESERVED31 0x3C
#define MFRC522_REG_RESERVED32 0x3D
#define MFRC522_REG_RESERVED33 0x3E
#define MFRC522_REG_RESERVED34 0x3F
//Dummy byte
#define MFRC522_DUMMY 0x00
#define MFRC522_MAX_LEN 16
/**
* Public functions
*/
/**
* Initialize MFRC522 RFID reader
*
* Prepare MFRC522 to work with RFIDs
*
*/
extern void MFRC522_Init(void);
/**
* Check for RFID card existance
*
* Parameters:
* - uint8_t* id:
* Pointer to 5bytes long memory to store valid card id in.
* ID is valid only if card is detected, so when function returns MI_OK
*
* Returns MI_OK if card is detected
*/
extern MFRC522_Status_t MFRC522_Check(uint8_t* id);
/**
* Compare 2 RFID ID's
* Useful if you have known ID (database with allowed IDs), to compare detected card with with your ID
*
* Parameters:
* - uint8_t* CardID:
* Pointer to 5bytes detected card ID
* - uint8_t* CompareID:
* Pointer to 5bytes your ID
*
* Returns MI_OK if IDs are the same, or MI_ERR if not
*/
extern MFRC522_Status_t MFRC522_Compare(uint8_t* CardID, uint8_t* CompareID);
/**
* Private functions
*/
extern void MFRC522_InitPins(void);
extern void MFRC522_WriteRegister(uint8_t addr, uint8_t val);
extern uint8_t MFRC522_ReadRegister(uint8_t addr);
extern void MFRC522_SetBitMask(uint8_t reg, uint8_t mask);
extern void MFRC522_ClearBitMask(uint8_t reg, uint8_t mask);
extern void MFRC522_AntennaOn(void);
extern void MFRC522_AntennaOff(void);
extern void MFRC522_Reset(void);
extern MFRC522_Status_t MFRC522_Request(uint8_t reqMode, uint8_t* TagType);
extern MFRC522_Status_t MFRC522_ToCard(uint8_t command, uint8_t* sendData, uint8_t sendLen, uint8_t* backData, uint16_t* backLen);
extern MFRC522_Status_t MFRC522_Anticoll(uint8_t* serNum);
extern void MFRC522_CalculateCRC(uint8_t* pIndata, uint8_t len, uint8_t* pOutData);
extern uint8_t MFRC522_SelectTag(uint8_t* serNum);
extern MFRC522_Status_t MFRC522_Auth(uint8_t authMode, uint8_t BlockAddr, uint8_t* Sectorkey, uint8_t* serNum);
extern MFRC522_Status_t MFRC522_Read(uint8_t blockAddr, uint8_t* recvData);
extern MFRC522_Status_t MFRC522_Write(uint8_t blockAddr, uint8_t* writeData);
extern void MFRC522_Halt(void);
#endif
source
#include "mfrc522.h"
void MFRC522_Init(void) {
MFRC522_CS_HIGH;
MFRC522_Reset();
MFRC522_WriteRegister(MFRC522_REG_T_MODE, 0x8D);
MFRC522_WriteRegister(MFRC522_REG_T_PRESCALER, 0x3E);
MFRC522_WriteRegister(MFRC522_REG_T_RELOAD_L, 30);
MFRC522_WriteRegister(MFRC522_REG_T_RELOAD_H, 0);
/* 48dB gain */
MFRC522_WriteRegister(MFRC522_REG_RF_CFG, 0x70);
MFRC522_WriteRegister(MFRC522_REG_TX_AUTO, 0x40);
MFRC522_WriteRegister(MFRC522_REG_MODE, 0x3D);
MFRC522_AntennaOn(); //Open the antenna
}
MFRC522_Status_t MFRC522_Check(uint8_t* id) {
MFRC522_Status_t status;
//Find cards, return card type
status = MFRC522_Request(PICC_REQIDL, id);
if (status == MI_OK) {
//Card detected
//Anti-collision, return card serial number 4 bytes
status = MFRC522_Anticoll(id);
}
MFRC522_Halt(); //Command card into hibernation
return status;
}
MFRC522_Status_t MFRC522_Compare(uint8_t* CardID, uint8_t* CompareID) {
uint8_t i;
for (i = 0; i < 4; i++) {
CompareID[i]=CardID[i];
if (CardID[i] != CompareID[i]) {
break;
} return MI_ERR;
}
return MI_OK;
}
void MFRC522_WriteRegister(uint8_t addr, uint8_t val) {
//CS low
MFRC522_CS_LOW;
//Send address
addr=addr << 1;
addr=addr & 0x7E;
HAL_SPI_Transmit(&hspi1,&addr,1,500);
//Send data
HAL_SPI_Transmit(&hspi1,&val,1,500);
//CS high
MFRC522_CS_HIGH;
}
uint8_t MFRC522_ReadRegister(uint8_t addr){
uint8_t val;
//CS low
MFRC522_CS_LOW;
addr=addr << 1;
addr=addr & 0x7E;
addr=addr | 0x80;
HAL_SPI_Transmit(&hspi1,&addr,1,500);
HAL_SPI_Transmit(&hspi1,MFRC522_DUMMY,1,500);
HAL_SPI_Receive(&hspi1,&val,1,500);
//CS high
MFRC522_CS_HIGH;
return val;
}
void MFRC522_SetBitMask(uint8_t reg, uint8_t mask) {
MFRC522_WriteRegister(reg, MFRC522_ReadRegister(reg) | mask);
}
void MFRC522_ClearBitMask(uint8_t reg, uint8_t mask){
MFRC522_WriteRegister(reg, MFRC522_ReadRegister(reg) & (~mask));
}
void MFRC522_AntennaOn(void) {
uint8_t temp;
temp = MFRC522_ReadRegister(MFRC522_REG_TX_CONTROL);
if (!(temp & 0x03)) {
MFRC522_SetBitMask(MFRC522_REG_TX_CONTROL, 0x03);
}
}
void MFRC522_AntennaOff(void) {
MFRC522_ClearBitMask(MFRC522_REG_TX_CONTROL, 0x03);
}
void MFRC522_Reset(void) {
MFRC522_WriteRegister(MFRC522_REG_COMMAND, PCD_RESETPHASE);
}
MFRC522_Status_t MFRC522_Request(uint8_t reqMode, uint8_t* TagType) {
MFRC522_Status_t status;
uint16_t backBits; //The received data bits
MFRC522_WriteRegister(MFRC522_REG_BIT_FRAMING, 0x07); //TxLastBists = BitFramingReg[2..0] ???
TagType[0] = reqMode;
status = MFRC522_ToCard(PCD_TRANSCEIVE, TagType, 1, TagType, &backBits);
if ((status != MI_OK) || (backBits != 0x10)) {
status = MI_ERR;
}
return status;
}
MFRC522_Status_t MFRC522_ToCard(uint8_t command, uint8_t* sendData, uint8_t sendLen, uint8_t* backData, uint16_t* backLen) {
MFRC522_Status_t status = MI_ERR;
uint8_t irqEn = 0x00;
uint8_t waitIRq = 0x00;
uint8_t lastBits;
uint8_t n;
uint16_t i;
switch (command) {
case PCD_AUTHENT: {
irqEn = 0x12;
waitIRq = 0x10;
break;
}
case PCD_TRANSCEIVE: {
irqEn = 0x77;
waitIRq = 0x30;
break;
}
default:
break;
}
MFRC522_WriteRegister(MFRC522_REG_COMM_IE_N, irqEn | 0x80);
MFRC522_ClearBitMask(MFRC522_REG_COMM_IRQ, 0x80);
MFRC522_SetBitMask(MFRC522_REG_FIFO_LEVEL, 0x80);
MFRC522_WriteRegister(MFRC522_REG_COMMAND, PCD_IDLE);
//Writing data to the FIFO
for (i = 0; i < sendLen; i++) {
MFRC522_WriteRegister(MFRC522_REG_FIFO_DATA, sendData[i]);
}
//Execute the command
MFRC522_WriteRegister(MFRC522_REG_COMMAND, command);
if (command == PCD_TRANSCEIVE) {
MFRC522_SetBitMask(MFRC522_REG_BIT_FRAMING, 0x80); //StartSend=1,transmission of data starts
}
//Waiting to receive data to complete
i = 2000; //i according to the clock frequency adjustment, the operator M1 card maximum waiting time 25ms???
do {
//CommIrqReg[7..0]
//Set1 TxIRq RxIRq IdleIRq HiAlerIRq LoAlertIRq ErrIRq TimerIRq
n = MFRC522_ReadRegister(MFRC522_REG_COMM_IRQ);
i--;
} while ((i!=0) && !(n&0x01) && !(n&waitIRq));
MFRC522_ClearBitMask(MFRC522_REG_BIT_FRAMING, 0x80); //StartSend=0
if (i != 0) {
if (!(MFRC522_ReadRegister(MFRC522_REG_ERROR) & 0x1B)) {
status = MI_OK;
if (n & irqEn & 0x01) {
status = MI_NOTAGERR;
}
if (command == PCD_TRANSCEIVE) {
n = MFRC522_ReadRegister(MFRC522_REG_FIFO_LEVEL);
lastBits = MFRC522_ReadRegister(MFRC522_REG_CONTROL) & 0x07;
if (lastBits) {
*backLen = (n - 1) * 8 + lastBits;
} else {
*backLen = n * 8;
}
if (n == 0) {
n = 1;
}
if (n > MFRC522_MAX_LEN) {
n = MFRC522_MAX_LEN;
}
//Reading the received data in FIFO
for (i = 0; i < n; i++) {
backData[i] = MFRC522_ReadRegister(MFRC522_REG_FIFO_DATA);
}
}
} else {
status = MI_ERR;
}
}
return status;
}
MFRC522_Status_t MFRC522_Anticoll(uint8_t* serNum) {
MFRC522_Status_t status;
uint8_t i;
uint8_t serNumCheck = 0;
uint16_t unLen;
MFRC522_WriteRegister(MFRC522_REG_BIT_FRAMING, 0x00); //TxLastBists = BitFramingReg[2..0]
serNum[0] = PICC_ANTICOLL;
serNum[1] = 0x20;
status = MFRC522_ToCard(PCD_TRANSCEIVE, serNum, 2, serNum, &unLen);
//(uint8_t command, uint8_t* sendData, uint8_t sendLen, uint8_t* backData, uint16_t* backLen) {
if (status == MI_OK) {
//Check card serial number
for (i = 0; i < 4; i++) {
serNumCheck ^= serNum[i];
}
if (serNumCheck != serNum[i]) {
status = MI_ERR;
}
}
return status;
}
void MFRC522_CalculateCRC(uint8_t* pIndata, uint8_t len, uint8_t* pOutData) {
uint8_t i, n;
MFRC522_ClearBitMask(MFRC522_REG_DIV_IRQ, 0x04); //CRCIrq = 0
MFRC522_SetBitMask(MFRC522_REG_FIFO_LEVEL, 0x80); //Clear the FIFO pointer
//Write_MFRC522(CommandReg, PCD_IDLE);
//Writing data to the FIFO
for (i = 0; i < len; i++) {
MFRC522_WriteRegister(MFRC522_REG_FIFO_DATA, *(pIndata+i));
}
MFRC522_WriteRegister(MFRC522_REG_COMMAND, PCD_CALCCRC);
//Wait CRC calculation is complete
i = 0xFF;
do {
n = MFRC522_ReadRegister(MFRC522_REG_DIV_IRQ);
i--;
} while ((i!=0) && !(n&0x04)); //CRCIrq = 1
//Read CRC calculation result
pOutData[0] = MFRC522_ReadRegister(MFRC522_REG_CRC_RESULT_L);
pOutData[1] = MFRC522_ReadRegister(MFRC522_REG_CRC_RESULT_M);
}
uint8_t MFRC522_SelectTag(uint8_t* serNum) {
uint8_t i;
MFRC522_Status_t status;
uint8_t size;
uint16_t recvBits;
uint8_t buffer[9];
buffer[0] = PICC_SElECTTAG;
buffer[1] = 0x70;
for (i = 0; i < 5; i++) {
buffer[i+2] = *(serNum+i);
}
MFRC522_CalculateCRC(buffer, 7, &buffer[7]); //??
status = MFRC522_ToCard(PCD_TRANSCEIVE, buffer, 9, buffer, &recvBits);
if ((status == MI_OK) && (recvBits == 0x18)) {
size = buffer[0];
} else {
size = 0;
}
return size;
}
MFRC522_Status_t MFRC522_Auth(uint8_t authMode, uint8_t BlockAddr, uint8_t* Sectorkey, uint8_t* serNum) {
MFRC522_Status_t status;
uint16_t recvBits;
uint8_t i;
uint8_t buff[12];
//Verify the command block address + sector + password + card serial number
buff[0] = authMode;
buff[1] = BlockAddr;
for (i = 0; i < 6; i++) {
buff[i+2] = *(Sectorkey+i);
}
for (i=0; i<4; i++) {
buff[i+8] = *(serNum+i);
}
status = MFRC522_ToCard(PCD_AUTHENT, buff, 12, buff, &recvBits);
if ((status != MI_OK) || (!(MFRC522_ReadRegister(MFRC522_REG_STATUS2) & 0x08))) {
status = MI_ERR;
}
return status;
}
MFRC522_Status_t MFRC522_Read(uint8_t blockAddr, uint8_t* recvData) {
MFRC522_Status_t status;
uint16_t unLen;
recvData[0] = PICC_READ;
recvData[1] = blockAddr;
MFRC522_CalculateCRC(recvData,2, &recvData[2]);
status = MFRC522_ToCard(PCD_TRANSCEIVE, recvData, 4, recvData, &unLen);
if ((status != MI_OK) || (unLen != 0x90)) {
status = MI_ERR;
}
return status;
}
MFRC522_Status_t MFRC522_Write(uint8_t blockAddr, uint8_t* writeData) {
MFRC522_Status_t status;
uint16_t recvBits;
uint8_t i;
uint8_t buff[18];
buff[0] = PICC_WRITE;
buff[1] = blockAddr;
MFRC522_CalculateCRC(buff, 2, &buff[2]);
status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff, &recvBits);
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A)) {
status = MI_ERR;
}
if (status == MI_OK) {
//Data to the FIFO write 16Byte
for (i = 0; i < 16; i++) {
buff[i] = *(writeData+i);
}
MFRC522_CalculateCRC(buff, 16, &buff[16]);
status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 18, buff, &recvBits);
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A)) {
status = MI_ERR;
}
}
return status;
}
void MFRC522_Halt(void) {
uint16_t unLen;
uint8_t buff[4];
buff[0] = PICC_HALT;
buff[1] = 0;
MFRC522_CalculateCRC(buff, 2, &buff[2]);
MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff, &unLen);
}
tamam işte kütüphanede problem yok ama ufak düzenleme yapman gerek.
Dediğim gibi fonksiyonlara parametre olarak SPIx ver.
Örneğin :
MFRC522_WriteRegister(SPI1, MFRC522_REG_T_RELOAD_H, 0);
Once C programlamada birden çok dosya ile calismayi ogrensen zorlanmazsin bu kadar. Hatta fonksiyon kavraminj falan en bastan ogren. Cunku temel kavramlari bilmeden bodoslama atlarsan kafan karisir. Once high level da test et kodlarini sonrasi basit zaten.
bu durumla ilk defa karşılaştığım için sıkıntı yaşamıştım çözümü çok basitmiş hallettim teşekkür ederim.